Lightroom :: Photo Border In Library When Dimming Background?

In lightroom 3 I had a border around any photo in loupe view when I dimmed the background using the "L" key (seen only when dimmed). I don't remember ever setting it, it just seemed to come that way. I cannot get this border (which really worked to separate the photo from the background) anymore. I tried all preferences and tried to find this out in Lightroom Help before submitting this question. The border looked like the one you can add in the print module. I notice that when using the "L" key to dim, I also lose the ability to display the information overlay, even when cycling through the "I" key. Am I overlooking a setting or is this just a change to LR4?